Automatic photographic camera



Dec. 30, 1952 w. BORNEMANN ETAL AUTOMATIC PHOTOGRAPHIC CAMERA 3 Sheets-Sheet 1 Original Filed Dec. 13, 1947 HILL/AM BaQ/VEMANN NEWMAN NORMA/YR.

INVENTORS TTY. 6.11671 Dec. 30, 1952 w. BORNEMANN ETAI. 23,606

AUTOMATIC PHOTOGRAPHIC CAMERA 5 Sheets-Sheet 2 Original Filed Dec.

HILL MM BOR/YEMAN/Y NORMA/Y R. NEWMAN 1 N 1 EN TO R8 M 0H4 BY W JM ATT Y 6A6 T Reissued Dec. 30, 1952 AUTOMATIC PHOTOGRAPHIC CAMERA.

Niliia'nr' Borneman'rr and Norman R. Newman,

RochesterpN; Y., assignorsl to Eastman Kodak Company;JRo'chestc1-,

New J erseyi N. Y., a corporation-of (Jriginal'No; 2,552,250,1dated May-8, 1951', Serial No. 7913614', December 13, 1947.- Application;

19, 1952, Se1'ial-N0I 272,305

for reissue February- 30 Claimsw (c1. ea -11.5)

Matter enclosed in heavybrackets [Iappears in the original patent but forms nopart indicates the additions made by reissue.

reissue specification; matter printed "in italics This invention relates to photography and more particularly to' photographiccameras in which Y all of the normal button by the operator;

manual operations ".for making an exposure are automatically. performed. by; the camera upon-the actuation of a single Automatic cameras in-w-hich' the actuation'ofi. asingle button or asingle'means' not a pa'rt of the camera results in trippin'g of the' shutter and '1 advancing of the film are' wellknown." However;

in thesecameras the film after T being threaded into the camera must be advanced manually the supply required of the operatorare the loading of the" film; into the supply leading edge into the bite of the drive rolls, clos v ing the supply. chamber rcover; actuating the operating button ior making an exposure, and

chamber and placing the removing the magazine into which the exposed"- film -is is :entirely automatic of the camera being performed in proper seidelivered. The opcration-ofthe camera with the various functions quence I 'andqtimed: relation' by electrical mean'sr Byproviding a plurality-of interlocking electrical circuits, the film strip is fed past the exposure aperture for'apredetermined number ofexposures'upon closing of'the supply chamber cover without causing actuation of'the illuminating, means for the subject. this multiple cycle, exposure and-movement of.

single frames of film aremade 'by the actuation of a single button.- Upon the-entry of the trail ing edge of the film strip into theexposure aper ture, themultiple-cycle circuit is again initiated After the completion of,

to remove the last partial frameof film. If-at any timewhile the supply chamberhas film, the cover is opened cycle circuit will again exposure can be made.

and then closed, the multiplebe initiated befor an With these interlocking:

electrical circuits, errors by the operator are,

eliminated in making exposures, manual-effort andflcontrol bythe operator are reduced to-a minimum, the threading and unloading of the film is very much simplified, and the cameraassumes a form which is very compact and complete in its operation;

fore, is to provide a photographic camera which i which the sequence of interlocking elecis entirelyautomatic and in of performance of a plurality trical circuits are-controlled film supply chamber cover.

Another object of a fully automaticphotographic camera in which the sequence of performance-"of a plurality of interlocking electrical circuits are controlled-by the entry of the trailing-edge" oi the film strip into the exposure aperture.

A still further object ofthe invention is to pro'vi'dea fully automatic photographic camera -havinganelectrical circuit initiated by the"clos ing of the'film supply chamber which will maintain a'second electrical circuit energized for a predetermined length of time for winding on the fogged area oflthe film.

And still another object of the invention is to provide a fully automatic camera in which a sev-' ering means for the film strip is operative only when the cyclingelements of the-camera are inoperative.

And yet another object of the-invention is'to provide a fullyautomatic photographic camera having an electrical circuit'which-"is--initiated by the closing of a single switch topermit a plurality of cams to actuate a plurality"of' switches in proper sequence to move an unexposedarea of film into position,

meansfor the film strip;

A further object of the invention 'isto provide a fully automatic camera in which a single cycle circuit is initiated by the closing 'ofa switch-to pei'niita plurality-"of cams to actuate a plurality of switches in proper sequence tomove an-unexposed area oifilm'into positiornand to actuate the shutter and illuminatingmeansand which is?" providedwith a severing means for-thefilm strip adapted to be actuated only-when the'lsingle cycle circuit is inoperative;

Andiyet another obj'ect of the invention is to provide a fully: automatic -camera inwhich a single' -cycle "circuit 'is initiated by the closing of asWitch-to'pcrmita plurality of cams to"actuate a plurality of switches in 'prbper "sequence" to move'an unexposedarea oflfilfm into position, to, actuate "thef'shutter Iandl illi'miin'ating'. means,

energized,foi l ajpredetermined-number of cyclesby .amultiple cy'cle circuit'initiated by the-close- -,ing'of thefilm supply chamber cover and the of this by the ClOSillg'Of the the invention is to provide to actuate thshutter andilluminating means, and to release the severing a film strip past said exposure aperture, means for actuating said shutter, a synchronizing means operatively connected to said actuating means for energizing said illuminating means in timed relation to the actuation of said shutter, a singlecycle circuit for initiating in proper sequence said film-advancing means, said shutter-actuating means and said synchronizing means, a single-cycle timing means, a multiple-cycle circuit in parallel circuit with said single-cycle circuit for maintaining said single-cycle circuit energized for a predetermined number of cycles upon closing of said cover and the entry of the trailing edge of the film strip into the exposure aperture, and a severing circuit for releasing the severing means for said film strip only when said single cycle circuit and said multiple-cycle circuits are inoperative.

Reference is now made to the accompanying drawings wherein like reference numerals designate like parts and wherein:

Fig. 1 is a diagrammatic perspective view of the primary elements of the camera with certain elements shown out of normal position for clarity;

Fig. 2 is a side elevation of the end plates between which the various driven shafts are mounted;

Fig. 3 is a rear view of the film-retaining plate showing the arrangement for mounting the switches actuated by the trailing edge of the film;

Fig. 4 is a rear view of the exposure-aperture plate showing arrangement of the lower filmadvancing rolls and the drive therefor;

Fig. 5 is a vertical section through. the exposure station of the camera;

Fig. 6 is a vertical section through the timing shaft of the camera;

Fig. 7 is a vertical section through the knife shaft of the camera;

Fig. 8 is a section taken substantially on the line 8-8 of Fig. 7 showing the construction of the clutch on each of the operating shafts;

Fig. 9 is a vertical section through the cam shaft of the camera;

Figs. 10-14 show the relation of the various cams to the switches actuated thereby to obtain a given sequence of operation;

Fig. is a wiring diagram of the interlocking circuits used in the camera; and

Fig. 16 is a diagrammatic representation'of a split contact-double throw switch.

Although the present disclosure of the invention is described as being embodied in a photographic camera, it shall be understood that this invention may also be applied to many and various other types of film-handling apparatus. In the illustrated embodiment of the invention, the camera is contained in a casing, not shown, having a film supply chamber In which is enclosed by thecoverl Ipivoted at 12 on the casing. The casing also carries an objective lens l3 and a shutter M which are aligned with the exposure aperture 15 in the mounting plate I 5, see Figs. lands; :I Y

tight container for the v V The camera is provided with a motor 3| which The film-advancing means comprises roller I! mounted on the cover II, roller I 8 mounted on the casing and a second set of rolls at the lower end of the exposure aperture including the filmmeasuring roller I 9 mounted between the bearing portions 20 on the plate [5 and a spring biased roller 2| mounted between the arms 22 which are pivotally mounted on the extensions 23 of the platelB, see Figs. 1 and 5. The roller 19 may be arubber-covered roll extending the width of the film strip as shown in Fig. 1, or may be of the type shown in Fig. 4 in which individual rollers are mounted on the shaft 24 and have narrow rubber tires which engage only the edges of the film strip. The shaft 24 has a pulley 25 mounted thereon which is encircled by the crossed belt 26 to engage the pulley 21 on the shaft 28 of the roller I8. The film strip F is moved by the rolls l1, I8, I3 and 2| from the film supply chamber past the exposure aperture 15 and into .the magazine 30. The magazine may be of any light-tight construction, but is preferably .of the type shown in the U. S. Patent 2,095,849, issued on October 12, 1937 to O. Wittel.

This type of magazine is provided with a slide which is opened upon insertion into the camera for registering the aperture in the magazine with an aperture in the camera casing and upon removal from the camera is closed to make a lightfilm therein.

drives a plurality of shafts for actuating the varicus elements of the camera in proper sequence. The driven shaft 32 is driven by the motor 3| through the worm 33 on the motor shaft and the worm wheel 34 on the shaft 32 which is rotated continuously as long as the motor is energized. The driven shaft 32 carries stub shaft 31. The stub shaft also carries a pinion 38 which meshes with a gear 39 on the timing shaft 49. The driven shaft 32 also carries a pinion 4| which meshes with the gear 42 on the cam shaft 43 and the gear 44 on the knife shaft 45 and at the extremity of the shaft carries a sprocket or pulley 45 which is encircled by a chain or belt 41 to drive the sprocket or pulley 48. on the shaft 24. The shafts provided with a clutch 49, and-9. The clutch on each shaft is identical in construction so that only the one shown in Fig. 6 will be .described. The clutch 49 comprises a driven member 50 of the shape best shown in Fig. 8 which is secured to the shaft 40 journalecl in the end plates 5|. The driving member 52 comprises a'fianged sleeve 53 and a bearing portion 54 which is free to turn on the bushing 55 on the shaft 40, said bearing portion 54 also carrying the gear 39.

A plate 55 carries a plurality of pins 51 which are adapted to enter the notched-out portions 58 of the driven member'5fl. The member 59 also carries a pin 59 which extends through an aperture in the plate 56 and is provided with a plurality of springs 60 for engaging the pins 51. As shown in Figs. 1 and 2, the plates 56*a1'e tion by the solenoids '61, 62, 63 and 64 with reference to the shafts 28, 40, 43 and 45 respectively."

In Fig. 2, it will be noted that the solenoids are actually connected to the pivoted members 55 which engage the plates 56. With this construction, the gears 39, 42, may be rotated but the shafts will not rotate until the plates 55 are released by the solenoids to permit the springs Ell to wedge the pins 51' between j the sleeve 53 and the driven member 50. In other a pinion 35 on one end thereof which meshes with the gear 36 on the 24, 46, 43 and 45 areas shown in Figs. 4, 6, 7

held against rota-" and 44 and the sprocket 48' eese words, the entire drivingmechanism is free torotats, but the shafts 28, 40; 43- and 45 will not ro tateuntil released by their respective-holding solenoid.

Thecarnshaft- 43' is journaledin the end plates 5|, see Figs. 2 and 9, and has-mounted-thereon afilm-advanoing cam 68, a shutter-actuating'cam 69, a knife-actuatin cam and a timing cam-- I I which are adap-ted 'to'actuate the switches 12; I3, 14 and 'l5, respectively. The shaft dais also proy-ided-with'a timing ca-m-'I6-and a switch TI adapted to be actuated thereby. The knife shaft Whas mounted thereon a cam I8 which is adapted to engage and movethe knife; blade-l9 forward against the film strip and against-the action of' thespringsflll; The severed film'thendropsinto themagazine 38, and the springs 8o return the knife blade to its normal rest position.

The shutter-actuating means comprises a cam 69 which is provided with 'a-protuberance BI and which-isadapted to rock the armfiZof the link t3,

mountecl in theblock at'to'gmove the link ile-fixed tothe arm-Sii-to the left,gas shown in-Fig: 1, to open the shutter bladesyB'i, Thehlades 81 are returned to their closed position'by thesprin 38 secured to the arm 86-.

Themagazine 3t closes the normally-open switch filliwhenit is properly positioned in the camera casing, Thenormally open: switch 9! is closed when the cover II is in its enclosing,,posie tion and the sWitchBZ is closed and then opened as;the cover is moved to :its closedposition, It willfbe noted from Fig. 15, that the switch fifiis placed in theline I in such a position that the magazine 39f'must bein position before anypotentialenters any of the circuits. In a similar manner, the switch 9| must be'closed by the move-.. ment of the cover to the closed position before,

any ,potential enters the circuits and as soonas the cover is opened, all of the circuits become dead. The switch 931s actuated by'the protuberanc .54 on thebottom of the knife bladelEl. The switchr; seeFigs. land 3, is located on the rear of the film-retaining plate 96 and has the actuate in roller. 97 for the switch located adjacent one.

sideof the top edge of the exposure aperturellfi.

A second switch 98 is also located on the plate 96,

and has the. actuating roller. 99 adjacent the. edge of the exposure apertureand at substantiallythe Theevarious. functions and.

midline thereof. sequence bf operationlof, the camsshafts, and switches just, desoribedcan best be understood when described in conjunction with the operating cally in Fig. 16, and areafwelhknown type of com mercial switch. I However, for the purpose of clarity-and simplificationof the wiring diagram, these switches have been split into individual switches, one being a normally-closed switch and the other a normally-fopen switch, with the understanding that when these switches are actuated, both will change-simultaneously; The timing switch I5; I therefore, has been numbered I5 and 75" on the stantaneously with closing of the cover 'I I.

' the 'magazine -3il removed fromtheucasing; and

the line switch I open, th'e va' rious circuits-are"- in the form shown in Fi'g. 15}'with the'normally' closed switches I2, -I3" and M held" in theopen" position-by the cams*68} 69- audit;- respectlvely,"- which are-"inth'e position of restg-assl'iown mange l0 -'12;"and"thesolenoids BI, 6'2; 63 and 64 1 301 ingtheir-respective 'shafts'against rotationa The film roll is first placed in the chamberd fl and' the leading 'e dgejof the film strip inserted-into P the bite of rollers" I 'I and 1 -I 8". The-magazine 30 may' then lee-placed inpositiontoclose theswitch-S l and' the' lines" I 05 and I 06 connec-ted=-to"a source of power: The line'switch I04'can'thenbeclosedjand thewhite lamp ''I I] I connected across tlielines IDS- and I 06 will then indicate the-presence of a potential within the camera: I The'synchro nizer Ill-2 is 'connec-ted*- into the camera by thelines 'loa and- I09- and obtains its potential from the linesI IIla-nd III. 1 With'a potential-indicated" by the lamp I 07'; thefilin-in the-"camera; and-the magazine 'in position; the cover I I -may he closed-. As thecoveris moved to its closed positiomjthe switch 92 is closed and the relay Y is energized, 1 the circuit being'from'line" I05 to line HZ, line and to'the line H6 through 'the'relayY'to the lineme I The switch 52 1s held-closeduntil th'e'*= cover I I reaches its closed position atwhich time the switch ill will be closed and the switch 92 opened. The relay Yupon energization', closes its contacts Yi-and Y2 and=opens Ya. With-theclosing of Y1, the line-III is connectedto'- the line H6 and the solenoid 62'is energized-to re-* lease the shaft ML The closing of Y2-completesa circuit through the solenoid 63 to release the" shaft 43 by-the lines H8 and I I9 through therelay contact Y2 and the switch 15" to the solenoid and the line I06; The closing'of Yz-also ener gizes the relay X by means of the lines-I2U and I2I 'whioh results-in the closing of its contacts" X1 andXzandopens'Xs'. With Ysin-the open position, the circuit to thesynchronizer 102' is broken. Closing of X1 connects the-line nil-"with" the line I22'to complete a'circuit throughj-the amber lamp I23 which-indicates that *the=1cam*-"- era is functioning; The closing of Xaconnects [line I I9 with the line 124 to'comp'lete-th'ecircuitthrough the 1 motor 13L] "across lines 105 and 106' the portion'of line 124' between Zine -106iand the left side of X2 and line '118'toucompletedhe" circuit through motor 31.'

It is to be understood, of course, that th'e'enere gization of the solenoids G2 and 63 of the relays. X and Yfand of theimotorll takes plaoe'in As a result, as soon as the, motor 3| starts driving the shaft .32 and shaft 40"through the gears 35', 36, 38," and 39 and the clutch 49,'l the solenoid being contracted upon energization to withdraw? the member 65 from. engagement with the plate.

55, the cam I6 is rotated counterclockwise to" actuate the switch I1 by closing 11' and opening TI"; With the closing of TI and the opening of switch 92 as the cover reaches its closed position, the relay Y is maintained energized through the line II 2 to line H3, through TI" in line III to line II5, and through Y1 to line IIB'and. the; relay Y to the line I06. With the opening of TI", thesolenoid 62 is deenergized, and themember 65"is moved back intothe path of the nose on The energization of the solenoid 63 also permits the shaft 43 to be driven from the shaft 32 through the gears M and 42 and the clutch 49. As the shaft 43 rotates in a clockwise direction, the cams 68, 69, I and II rotate therewith. With reference to Figs. 10-13, it will be noted that the cam II immediately actuates the switch I toclose I5 and open I5. The closing of I5 maintains the relay X energized by the circuit through the line H8 and I5 to line I25, through X to line I2I and the relay X to line I06. The opening of I5 breaks the circuit through the solenoid 63 to deenergize it and permit the member 65 to return to its position for arresting the plate 56 upon one complete revolution of the shaft 43. The relation between shaft 40 and the shaft 43 through the gear trains connecting said shafts is such that shaft 43 makes 16 revolutions to one revolution of shaft 40. Since cam I6 on shaft 40 maintains the relay Y energized for one complete revolution thereof, the switch I5 will be actuated 16 times to energize the solenoid 63 and the relay X will be continuously energized either through Y2 or I5 to maintain the motor 3| and the lamp I23 energized for sixteen cycles of shaft 43.

.Upon rotation of the shaft 43, the cam 69 is rotated so that switch I3 is permitted to close when the contact member thereof enters the depression 69'. However, since relay Y is energized, Y3 is held open and the synchronizer I02 does not function. At the same time, the switch I3 is actuated, the protuberance 8| strikes the arm 82 to move the link 85 to the left to actuate the shutter. The shutter-actuating means, therefore, includes the cam 69, the link 63 and the link 85, with the cam 69 also providing means for completing the circuit for actuating the synchronizer means. The cam 68 permits the switch I2 to close when the contact member enters the depression 68 which energizes the solenoid 6| through the line I05 to switch I2 and through the solenoid 6| to line I06. The solenoid 6I then releases the plate 56 and the shaft 32 through the sprocket 46, belt 41, sprocket 48 and clutch 49 drives the shaft 28 and the measuring roller I9. The roller I8 is driven from roller I9 by the belt 26, and the rollers I1 and 2| are driven through contact with the film strip. The filmadvancing means, therefore, comprises the motor 3 I, the worm 33, the worm wheel 34, the shaft 32, the pulleys 46 and 48, the belt 41, the shaft 26,

and the rollers II, I8, I0, and 2| with the pulley 25 and 21 and the belt 26 connecting said rollers. After the advancing of the film, the cam I0 permits the switch I4 to close when the contact member enters the depression I0. The closing of switch I4 completesa circuit to the solenoid 64 from line II9, through line I26 containing the switches I4 and I2I to the line I28, and through the solenoid 64 to the line I06. The solenoid 64, upon energization, releases the plate 56 and the shaft 32 which through the gears 4| and 44 and the clutch 43 rotates the shaft 45. The knife cam 18 is then rotated to move the blade I9 7 against the film strip to sever it so that it falls into the magazine 36, The springs maintain the knife I9 in contact with the cam I0 and also serve to return the knife to its normal rest position. The severing means for the film strip,

therefore, comprises the cam I3, the blade 16 switches I3, I2, and I4 are actuated in timed relation to each other; in other words, the cams are mounted on the shaft 40 with their depressions arranged in a fixed relation to each other to obtain the proper sequence of operation. It will also be noted that switches I2, I3 and I4 are only closed momentarily to energize the solenoids BI, 63, and 64 to permit rotation of the shafts 28, 40 and 43 and to energize the synchronizer I02.

As the film is driven from the bite of the rolls I1 and I8 into the exposure station between the plates I6 and 96, the leading edge first strikes the actuating roller 91 to actuate switch and close 95 and open 95". As the film is advanced into the exposure station, the leading edge, at substantially the mid-line of the aperture I5, strikes the actuating roller 99 to actuate switch 56 and close 98 and open 98" for a purpose to be described hereinafter.

When the cam I6 has made one revolution, the switch 11 will again be actuated to open 11' and close 11" which will deenergize the relay Y to open Y1 and Y2 and close Y3. At the same time, the switch I5 will be actuated by cam II to open I5 and close I5 to deenergize the relay X to open X1, and X2 and close X3. When the cams II and I6 reach this point, sixteen cycles of shaft 43 will have been made with 15 pieces of film severed from the roll to remove any fogged film. The reason for 15 pieces of film in 16 cycles is that the first cycle was completed before any film reached the rollers I0 and 2 I. At this point, the motor 3I will have stopped, the amber lamp I23 will be out, and the circuits will be as shown in Fig. 15 with the switches 90, SI and I04 closed and 93' and 95' closed and 93" and 95" open. The camera is now ready for making single exposures.

The operator must only momentarily close the switch I30 by pushing a button on the outside of the camera casing to make an exposure, no other operations being necessary. Upon closure of switch I30, the relay X and solenoid 63 are energized through the line II8, line II9 to line I2I, through switch I30 and relay X to line I06, through line I 20 to line H9, and through I5 and solenoid 63 to line I06. Upon energization of relay X, motor 3| is energized to drive shaft 32 and solenoid 63 releases shaft 43 so that cam II first actuates switch I5 to close I5 to maintain the relay X energized and opens I5 to deenergize solenoid 63. Since relay Y is not energized, Y3 remains closed and cam 69 closes switch I3 to energize the synchronizer I02 to permit energization of the lamp IIII in timed relation to the actuation of the shutter I4. The film is then advanced by the energization of solenoid 6| through the closure of switch I2 by the cam 68, and the severing means is actuated through the closing of switch I4 by the cam I0, as described above. the completion of one revolution by the member 65 engaging the plate 56, and switch I5 is actuated to open I5 to deenergize relay X. A pivoted link I3I is adapted to engage the pin 51 on each of the driven members 50 of the clutches 49 to prevent backward movement of the shaft upon engagement of the plate 56 with the members 65.

When only a partial frame of film remains above the rollers I1 and I8 and the operator actuates the switch I30 to make another exposure, the cycle is initiated as described above. However, when the trailing edge of the film strip reaches .the top edge of the exposure aperture I5 during The cam II is then arrested at exposure.

eam-Q6 to open 95' and close 95". Since the film is still under roller'ilfl, 98' is still closed and a circuit is completed to energize relay Y through line H3 to line HE, through 98 and 95 to relay Y and line I06, and solenoid B2 .is energized through line H5 and Y1 to line HT, and through '11" and solenoid 62 to line .lflfi. The shaft 43 will, therefore, making 16 complete cycles as when the cover H is moved. to theclosed position. .-As the trailingedge of the film strip passes the roller 39, the switch 98 is actuatedtoopen 98'-;and close 98", a circuit is then completed through line H3 and 93" to the red lamp I32 to indicate that the last exposure was made. vThe amber lamp I23 at the same time will indicate that the camera is still .in operation and the cover shoul-d-notbe opened.

From the foregoingdescription, .itzwill be noted that. the solenoid B3'and the relay X comprise the single-cycle circuit, the solenoid 6-3 releasing the' cam shaft ll3 to .causerthelfunctions of the camera to be performed in'proper sequence,- and the relay X maintaining the motor; 3| energized for the period of the single cycle. cycle timing means comprises thecam ll andthe switch which'maintains the relay X energized and deenergizes the solenoid 63 and causes the circuit to assume the proper relation for the next The multiple-cyclecircuit includes the relay Y and the: solenoid j52,;the solenoid releasingth-e multiple-cycle;timing:means and the relay Y maintaining the relayXv-energizedfor-a predetermined number of cycles and reenergizing solenoid '62 at the -:end :of each :cycle. The multiple-cycle timing-meansgincludesthe cam 15 and the switch I! whichzmaint'ains the relay-Y energized for a predetermined-period.

If, for reasons or processing or. any other reason, it is-desired to eliminate automatic severing of the film strip and leave the exposures-in strip "or rolled form, the switch [21 in the line [26 need merely be opened. .Theswitch 133, however, ..is provided to permit severing orthe'filmat any time. and 98' are closed, and the switch 93 is'held-by the protuberance 94 on'knifeJB whenzin'ithe normal position sothat' 93xis closedand .93" is opened. Upon closing of switch :.lj33;..:the solenoid -64 ;is energized by the circuit-comprising the line I, I 3;.to line ii-6, line 5.34.throughswitch3l33 to .line 125 and to .bo'ththe-motor'ill :an-dthe solenoidfid to the line'l-llfi. With :this arrangement, the. solenoidl .Mimay be ener izedzmanually after each exposure orany number of exposures.

the solenoiclJSA may be energizedonly when. the

. single-cycle circuit-andthe multiple-cycle circuits are inoperative which is'indicated by the lamp l23 being deenergized. It will be noted that film must also be in the exposure aperture 15 with 95' andi98' closed in order'to actuate theknife manually. This arrangement provides'a proper sequence of operation and eliminates any error on the part of the operator.

Since other modifications of theinvention are possible, the scope of the invention is not to be for, an exposure aperture, a film-advancing means for intermittently moving a film'strip 'fIOm'SEtld The single- With film .in the. eXposure-aperturefi, 95' v The contact'Xs, however, ispla'ced inthe .1ine'l28-so that supp y, hamber p s ;,sa-i-d e posur ape ture,- 5

single-cycle circuit .ior initiating Said film-la vancingmeanaand a multiplecycle circuit in parallel, circuit with saidsingle-cycle circuit and includinga solenoid. and a relay, said solenoid and relaybeing energized upon closing of said cover to initiate said singlercycle circuit for a predetermined number of cycles.

'2. In a photographic camera of the type described, the combination comprising a casing having afilm supply chamber and a cover therefor, an exposure aperture, a film-advancing means forintermittently moving a film strip from said supply chamber past said exposure aperture,

a single-cycle circuit for initiating-said film-advancing means, and a multiple-cyclecircuit in parallel circuit with said single-cycle-circuitand including asolenoid and. a relay, said solenoid and relay being energized upon entry of thetrailing. edge of said film strip into said exposure aperture to initiate said single-cycle circuitfor a predetermined number-of cycles.

'3. Ina photographic camera of the type ,described, the combination.rc-omprising a casing having a film supply chamber-anda cover therefor, an exposure aperture, a film-advancing means forintermittently movinga film strip from said supply chamberpast saidexposure aperture, a single-cycle circuit for initiating .said film-advancingmeans, and a, multiple-cycle circuit in parallelcircuit with: said single-cycle circuit and including-a solenoid and -a rel ay, said solenoid andrrelay beingenerg-ized-upon the closingof said cover and the; entry ,of-the-trailing edge of said film strip into said.exp-osure aperture to initiate said single-cycle circuit for a predetermined number of cycles.

a. Ina photographic --camera of the type clescribed, the combination comprising a casing having a film supplycha-mber anda cover therefor, an exposure aperture, a film-advancing -means for intermittently moving a film strip from said supply chamber past said exposure -aperture;:a;.singlewyclecirfluit for initiating said gizedby-rthe closing of said cover to initiate said single-cycle circuit, anda multiple-cycle timing -.means, adapted to :bereleased upon energization or" said solenoid fcrima 1 circuit; operative f,or--- cycles.

ini-ngsaid sing lercycle p determined number of 5. Jna photographic came 47a "of ,the type described, the; combination ;,;-co;rnprising a ;casing .haVlng-afilm supply chamber and a cover thereior, an. exposure aperture, a film-advancing means for intermittently moving .a film strip from said supply chamber past said .eXpQ-Sure V aperture, a .single-gcyclecircuit for initiating said film-advancing means,,,ja multiple-cycle circuit .in

7 parallel circuit withlsaidsingle-cycleeircuit and includinga solenoid and a relayin parallel circuit, said relay being momentarily energized by the closing of said cover to initiate said singlecycle circuit,, and a multiple-cycle timing means including a cam operated, switch adapted to be released upon energization of said solenoid by the closing of said cover tude-energize said solenoid and to maintain said relay energized for maintaining said-single-:cyclecircuit operatire for a predetermined number of cycles.

6.31- a photographic camera of the type 1 described, the combination-comprising a'casing for, an

having a film supply chamber and a cover therefor, an exposure aperture, a film-advancing means for intermittently moving a film strip from said supply chamber past said exposure aperture, a single-cycle circuit for initiating said film-advancing means, a multiple-cycle circuit in parallel circuit with said single-cycle circuitfor initiating said single-cycle circuit for a predetermined number of cycles, a normally-open switch in series with said multiple-cycle circuit and adapted to be momentarily closed by movement of said cover to the closed position for energizing said multiple-cycle circuit to initiate said single-cycle circuit, and a second normally-open switch in series with said single-cycle circuit and adapted to be closed when said cover is in the closed position and before said first-mentioned switch is re-opened to energize said single-cycle circuit.

7. In a photographic camera of the type described, the combination comprising a casing having a film supply chamber and a cover therefor, an exposure aperture, a film-advancing means for intermittently moving a film strip from said supply chamber past said exposure aperture, a single-cycle circuit for initiating said film-advancing means, a multiple-cycle circuit in parallel circuit with said single-cycle circuit for initiating said single-cycle circuit for a predetermined number of cycles, a normally-closed switch in series with said multiple-cycle circuit adjacent the upper edge of said exposure aperture and adapted to be held open by said film strip, and a normally-open switch in series with said first-mentioned switch located midway along said exposure aperture and adapted to be held closed by said film strip, said normallyclosed switch being allowed to close as the trailing edge of the film strip enters said exposure aperture to energize said multiple-cycle circuit to initiate said single-cycle circuit and said normally-open switch being allowed to open as the trailing edge of said film strip passes the mid point of said exposure aperture to break the circuit though said switches to said multiple-cycle circuit.

8. In a photographic camera of the type described, the combination comprising a casing having a film supply chamber and a cover theremeans for intermittently moving a film strip from said supply chamber past said exposure aperture, a single-cycle circuit for initiating said film-advancing means, a multiple-cycle circuit in parallel circuit with said single-cycle circuit for initiating said single-cycle circuit-for predetermined number of cycles, a normally-closed switch in series with said multiple-cycle circuit adjacent the upper edge of said exposure aperture and adapted to be held open by said filmw strip, and a normally-open switch in series with; said first-mentioned switch located midway along said exposure aperture and adapted to be held closed by said film strip, said normallyclosed switch being allowed to close as the trailing edge of the film strip enters said exposure aperture to energize said multiple-cycle circuit to initiate said single-cycle circuit and said nor mally-open switch being allowed to open as the trailing edge of said film strip passes the mid-- I point of said exposure aperture to break the circuit through said switches to said multiple-cycle circuit, and indicating means for the last exposure frame of said film strip responsive-only exposure aperture, a film-advancing when said normally-open switch is in the open position.

9; In a photographic camera of the type described, the combination comprising a casing having a film supply chamber and a cover therefor, an exposure aperture, a film-advancing means for intermittently moving a film strip from said supply chamber past said exposure aperture, a single-cycle circuit for initiating said film-advancing means, a multiple-cycle circuit in parallel circuit with said single-cycle circuit for initiating said single-cycle circuit for a predetermined number of cycles, a normally-closed switch in series with said multiple-cycle circuit adjacent the upper edge of said exposure aperture and adapted to be held open by said film strip, and a normally-open switch in series with said first-mentioned switch located midway along said exposure aperture and adapted to be held closed by said film strip, said switches being successively actuated by the trailing-edge of said film strip to energize said multiple-cycle circuit for initiating said single-cycle circuit for a predetermined number of cycles.

10. In a photographic camera of the type described, the combination comprising a casing having a film supply chamber and a cover therefor, an exposure aperture, a film-advancing means for intermittently moving a film strip from said supply chamber past said exposure aperture, a single-cycle circuit for initiating said film-advancing means and including a solenoid and a relay in parallel circuit, electrical means actuated by said cover when in the closed position for permitting said single-cycle circuit to be energized, an operating switch in series circuit with said relay and said solenoid for initiating said single-cycle circuit, and a cycle-timing means in cluding a cam-operated switch adapted to be actuated upon energization of said solenoid for de-energizing said solenoid and for maintaining said relay energized for one complete cycle to move a predetermined length of said film strip past said exposure aperture.

'11. In a photographic camera of the type described, the combination comprising a casing having a film supply chamber and a cover therefor, an exposure aperture, a film-advancing means for intermittently moving a film strip from said supply chamber past said exposure aperture, a single-cycle circuit for initiating said film-advancing means and including a solenoid and a relay in parallel circuit, electrical means actuated by said cover when in the closed position for permitting said single-cycle circuit to be energized, an operating switch in series circuit with said relay and said solenoid for initiating said single-cycle circuit, and a cycle-timing means including a cam and a switch operated thereby, said cam being released upon energization of said solenoid to actuate said switch for die-energizing said solenoid and for maintaining said relay energized for one complete revolution of said cam for moving a predetermined length of said film strip past said exposure aperture.

12. In a photographic camera of the type described, the combination comprising a casing having a film supply chamber and a cover therefor, an exposure aperture, a film-advancing means for intermittently moving a film strip from said supply chamber past said exposure aperture.

' a single-cycle circuit for initiating said film-advancing means and including a solenoid and a relay in parallel circuit and an operating switch in ser es circuit therewith initiating said single=cyc1e 'cIrcuit, a'single-cycle. timing means i lncluding a cam-operated switch:- adapted to. :be actuated upon energization'of vsaidisolenoid 'for de-energizing said solenoid and for maintaining said relay energized for one complete cycle to move a predetermined length of said film strip past'said exposure aperture, a multiple-cycle circuit in parallel circuit with said single-cycle'circuit and including a second relay andv a second solenoid in parallel circuit, said second solenoid I 'and said second relay being energized upon closing of said cover to initiate said single-cycle cir- 513'. In a photographic camera of the type .de-

a sci'ibed, the combination comprising a casing having a film supply chamber and a cover therefor, "an exposure aperture, a film-advancing means for intermittently moving a film strip. from said supply chamber past said exposure aperture, a single-cycle circuit for initiating said film-advancing means and including a solenoid and a relay in parallel circuit and an operating switch in series circuit therewith for manually initiating said single-cycle circuit, a single-cycle timing means including a cam and a switch operated thereby, said cam being released upon energization 'of said solenoid for de-energizing said solenoid and for maintaining said relay energized for one complete revolution of=said cam for mov ing a predetermined length of saidfilm'strip past "said exposure aperture, a multiple-cycle circuit in parallel circuit with said single-cycle circuit and including a second relay and a "second solemold in parallel circuit, said second solenoid and said second relay being energized by the closing of said cover and the entry of the trailing edge of said film strip into said exposure aperture to initiate said single-cycle circuit, and a multipleoycle timing means including a cam-operated "switch adapted to'be released upon energization 'ofsaid second solenoid for de-energizing said second solenoid and maintaining-said second relay energized to maintain said first-mentioned relay energized for a predetermined number'of cycles of said single-cycle timingmeans.

14. In a photographic camera/0f the type described, the combination comprising a casing having a film supply chamber and a cover therefor, an exposure aperture, a film-advancingmeans for intermittently moving afilm strip from said supply chamber past said exposure aperture, a severing means for said film strip adjacent the lower edge of said exposure aperture, a'single-' "cycle circuit for initiating said film-advancing means, amultiple-cycle circuit in parallel with said single-cycle circuit and adapted upon the closing'of said cover and the entry of the trail- Qing edge of saidfilm strip into said exposure aperture to be energized fol-initiating said singlecycle circuit for a predetermined ,number of fcycles, a cycle-timing means for .controlling said single-:cycle. and multiple-cycle circuits, and an.

electrical circuit in parallel circuit with said'singleand multiple-cycle circuits and including a solenoid and a switch means, said switch means being actuated by said cycle-timing means to energize said solenoid for releasing said severing- '..me'ans.:only whensaid single-cycle and multiplecycle circuits are inoperative.

15.":.In a photographic camera of the type de- "scribed,1the combination comprising. a casing .having a filmsupply chamber and a cover therefor; anrexposure aperture, a film-advancing means for intermittently moving a filmstrip from isaidisupply. chamber. past said exposure aperture,

razsevering .meansfor said film strip adjacent the lower'edge'ofsaid exposure aperture, a single- :cycle lCllCllllJ .for initiating said film-advancing meansand including asOlenoid and a relay in parallel circuit, electrical means actuated by said cover when in the closed position for permitting tuate'said sWitchJfQr.deeenergizing said solenoid and for maintaining said relay energized forione complete revolution of said cam for moving-1a predetermined length of said film strip past said exposure aperture, and an electrical cirouitin parallel circuit with said single-cycle circuit and "including a solenoid, a switch means and a second switch means adjacent said exposure aperture and adapted to be maintained in an operative circuit position by said film strip, said switch means being actuated by said cycle-timing means to energize said solenoid for releasing said severing means only when said film strip is'in position over said exposure aperture.

16. In a photographic camera of the type described, the combination comprising a casing having a film supply chamber and a cover therefor, an exposure aperture, a film-advancing means for intermittently moving a filmstrip from said supply chamber past said exposure aperture, a severing means for said film strip adacent the lower edge of said exposure apertura'a singlecycle circuit for initiating said film-advancing means and including a solenoid and a relay in parallel circuit, electrical means actuated by said cover when in the closed position for permitting said single-cycle circuit to be energized,an operating switch in series circuit'with saidrelay and said solenoid for initiating said single-cycle .actuate.'said switch for tie-energizing said solenoid and for maintaining said relay energized for one complete revolution of said cam for moving a predetermined length'of said film strip'past said exposure aperture, a multiple-cycle circuit in parallel circuit with said single-cycle circuit for initiating said single-cycle circuit for apredetermined number of cycles, and an electrical circuit in parallel circuit with said singleand multiple-cycle circuits and including a solenoid, a switch means and a second switch means adjacent said exposure aperture and adapted to be maintained in an operative circuit position by said film strip, said switch means being actuated by said cycle-timing means to energize said solenoid for releasing. said severing means only when said film strip is in position over saidexposure aperture and said single-cycle and multiple-cycle circuits are inoperative.

17. In a photographic camera oi?v theftypedescribed, the combination comprising a casing having a film supply chamber and a cover therefonalens, a shutter, an exposure aperture aligned f number of cycles.

.15 with said lens and said shutter, illuminating means outside of said casing, a film-advancing means for intermittently moving a film strip from said supply chamber past said exposure aperture, an actuating means for said shutter, a synchronizing means opcratively connected to said actuating means for energizing said illuminating means in timed relation to the actuation of said shutter, a single-cycle circuit for initiating said actuating means and said film-advancing means 1 in proper sequence, and a multiple-cycle circuit in parallel circuit with said single-cycle circuit and including a solenoid and a relay in parallel circuit, said relay being momentarily energized by the closing of said cover to energize said solenoid, to render said synchronizing means inoperative and to initiate said single-cycle circuit, and a multiple-cycle timing means including a camoperated switch adapted to be released by said solenoid to maintain said relay energized and to de-energize said solenoid for maintaining said single-cycle circuit operative for a predetermined 18. In a photographic camera of the type described, the combination comprising a casing having a film supply chamber and a cover therefor, a lens, a shutter, an exposure aperture aligned with said lens and said shutter, illuminating means outside of said casing, a film-advancing means for intermittently moving a film strip from said supply chamber past said exposure aperture, a severing means adjacent said exposure aperture for said film strip, an actuating means for said shutter, a synchronizing means operatively connected to said actuating means for energizing said illuminating means in timed relation to the actuation of said shutter, a singlecycle circuit including a relay and a solenoid for holding a plurality of cams against rotation, said cams being adapted upon rotation to actuate said shutter actuating means and a plurality of switches in sequence for initiating in proper sequence said actuating means, said film-advancing means, and said severing means, a manually-operated switch in series circuit with said relay and said solenoid for energizing said single-cycle circuit,-and a cycle-timing means including a cam and a switch adapted to be actuated thereby, said cam upon being released actuating said switch to d e-energize saidsolenoid and to maintain said relay energized for one complete revolution of said cam.

19. In a photographic camera of the type described, the combination comprising a casing having a film supply chamber and a cover therefor, a lens, a shutter, an exposure aperture aligned with said lens and said shutter, illuminating means outside of said casing, a film-advancing means for intermittently moving a film strip from said supply chamber past said exposure ap erture, an actuating means for said shutter, a

synchronizing means operatively connected to said actuating means for energizing said illuminating means in timed relation to the actuation of said shutter, a single-cycle circuit for initiating in proper sequence said film-advancing means, said actuating means, and said synchronizing means and including a solenoid and a relay in parallel circuit and an operating switch in series circuit therewith for initiating said single-cycle circuit, a single-cycle timing means including a cam-operated switch adapted to be actuated upon energization of said solenoid for lie-energizing said solenoid and for maintaining said relay encrgized for one complete cycle of said single-cycle circuit, a multiple-cycle circuit in parallel circuit with said single-cycle circuit and including a second relay and a second solenoid in parallel cirate said single-cycle circuit, and a multiple-cycle timing means including a cam-operated switch adapted to be released upon energization of said second solenoid for de-energizing said second solenoid and maintaining said second relay energized to maintain said first-mentioned relay energized for a predetermined number of cycles of said single-cycle timing means.

20. In a photographic camera of the type described, the combination comprising a casing having a film supply chamber and a cover therefor, a lens, a shutter, an exposure aperture aligned with said lens and said shutter, illuminating means outside of said casing, a film-advancing means for intermittently moving a film strip from said supply chamber past said exposure aperture, 21" severing means for said film strip adjacent said exposure aperture, an actuating means for said shutter, a synchronizing means cycle circuit including a relay and a solenoid in parallel circuit, said solenoid being adapted to normally hold a plurality of cams against rotation, an operating switch in series circuit with said relay and said solenoid for energizing said relay and said solenoid, said solenoid upon energization releasingv said came to permit actuation in prop-er sequence of said actuating means, said film-advancing means, and said severing means, a single-cycle timing means inculding a cam and a switch adapted to be actuated thereby, said cam being held against rotation by said solenoid and upon release actuating said switch to de-energize said solenoid and to maintain said relay energized for one complete revolution of said cam, a multiple-cycle circuit in parallel circuit with said single-cycle circuit and including a second relay and a second solenoid in parallel circuit, said second solenoid and said second relay being energized upon the closing of said cover and the entry of the trailing edge of said film strip into said exposure apertureto initiate said single-cycle circuit, anda multiple-cycle timing means including a cam and a switch, said cam being adapted to be released upon energization of said second solenoid to de-energize said solenoid and to maintain said second relay energized for maintaining said first mentioned relay energized for a predetermined number of cycles of said single-cycle timing means.

21. In a photographic camera of the type described, the combination comprising a casing having a film-supply chamber and a cover therefor, a lens, a shutter, an exposure aperture aligned with said lens and said shutter, illuminating means outside of said casing, a film-advancing means for intermittently moving a film strip from said supply chambe past said exposure aperture, a severing means adjacent said exposure aperture for said film strip, an actuating means for said shutter, a synchronizing means operatively connected to said actuating means for energizing said illuminating means in timed relation to the actuation of said shutter, a single-cycle circuit including a relay and a solenoid for holding a plurality of cams against rotation, said cams being adapted upon rotation to actuate said shutter actuating means and a plurality of switches in sequence for initiating said actuating means and switch adapted to be actuated thereby, said cam upon being released actuatin said switch to deenergize said solenoid and to maintain said relay energized for one complete revolution of said cam, and an electrical circuit in parallel circuit with said single-cycle circuit and including a solenoid and a switch means, said switch means being actuated by said cycle-timing means to energize said solenoid for releasing said severing means only when said single-cycle circuit is inoperative.

22. In a photographic camera of the type described, the combination comprising a casing having a film-supply chamber and a cover therefor, a lens, a shutter, an exposure aperture aligned with said lens and said shutter, illuminating means outside of said casing, a film-advanc ing means for intermittently moving a film strip from said supply chamber past said exposure aperture, a severing means adjacent said exposure aperture for said film strip, an actuating means for said shutter, a synchronizing means operatively connected to said actuating means for energizing said illuminating means in timed relation to the actuation of said shutter, a singlecycle circuit including a relay and a solenoid for holding a plurality of cams against rotation, said cams being adapted upon rotation to actuate said shutter actuating means and a plurality of switches in sequence for initiating said actuating means and said film-advancing means, a manually-operated switch in series circuit with said relay and said solenoid for energizing said singlecycle circuit, a cycle-timing means including a cam and a switch adapted to be actuated thereby, said cam upon being released actuating said switch to deenergize said solenoid and to maintain said relay energized for one complete revolution of said cam, and an electrical circuit in parallel circuit with said single-cycle circuit and including a solenoid, a switch means and a second switch means adjacent said exposure aperture and adapted to be maintained in an operative circuit position by said film strip said switch means being actuated by said cycle-timing means to energize said solenoid for releasing said severin means only when said film strip is in position over said exposure aperture and said single-cycle circuit is inoperative.

23. In a photographic camera of the type described, the combination comprising a casing having a film-supply chamber and a cover therefor, a lens, a shutter, an exposure aperture aligned with said lens and said shutter, a driven shaft, means including a motor for drivin said driven shaft, a cam shaft operatively connected to said driven shaft. a film-advancing means for intermittently moving a film strip from said supply c amber past said ex osure aperture and D- eratively connec ed to said driven sha t, means including a pluralit of solenoids for holding said cam shaft and said film-advancin means against rotation, a single-cycle circuit including said cam shaft solenoid and a relay in parallel circuit and an operating switch in series circuit therewith and adapted upon being closed to energize said cam-shaft solenoid to permit rotation of said cam shaft and to energize said relay for maintaining said motor energized, and means on said cam shaft including a plurality of cams for actuating a plurality of switches in proper sequence to release said film-advancing means and ,19 deener- 18 gize said single-cycle circuit upon one complete revolution of said cam shaft. I

24. In a photographic camera of the type described, the combination comprising a casing having a film-supply chamber and a cover therefor, a lens, a shutter, an exposure aperture aligned with said lens and said shutter, a shutter actuating means, a driven shaft, means including a motor for driving said driven shaft, a cam shaft operatively connected to said driven shaft, a severing means for said film strip operatively connected to said driven shaft, a film-advancing means for intermittently moving a film strip from said supply chamber past said exposure aperture and operativel connected to said driven shaft, means including a plurality of solenoids for holding said cam shaft, said severing means, and said film-advancing means against rotation, a single-cycle circuit including saidcamshaft solenoid and a relay in parallel circuit and an operating switch in series circuit therewith and adapted upon being closed to energize said cam-shaft solenoid to permit rotation of said cam shaft and to energize said relay for maintaining said motor energized, and means on said cam shaft including a plurality of cams for actuating said shutter actuating means and a plurality of switches in proper sequence to actuate said shutter, to release said film-advancing means, to release said severing means, and to deenergize said single-cycle circuit upon one complete revolution of said cam shaft.

25. In a photographic camera of the type described, the combination comprising a casing having a film-supply chamber and a cover therefor, a lens, a shutter, an exposure aperture aligned with said lens and said shutter, a shutter actuatin -means, illuminating means outside of said casing, a synchronizing means operatively connected to said shutter actuating means for energizing said illuminating means in timed rela-. tion to the actuation of said shutter, a driven shaft, means including a motor for driving said driven shaft, a cam shaft operatively connected to said driven shaft, a severing means for said film strip operatively connected to said driven shaft, a film-advancing means for intermittently moving a film strip from said supply chamber past said exposure aperture and operatively connected to said driven shaft. means including a plurality of solenoids for holding said cam shaft, said severing means, and said film-advancing means against rotation, a single-cycle circuit including said cam-shaft solenoid and a relay in parallel circuit and an operatin switch in series circuit therewith and adapted upon being closed to energize said cam-shaft solenoid to permit rotation of said cam shaft and to energize said relay for maintaining said motor energized, and means on said cam shaft including a plurality of cams for actuating said shutter actuating means and a plurality of switches in proper sequence to actuate said shutter, to release said film-advancing means, and said synchronizing means, to release said severing means, and to deenergize said single-cycle circuit upon one complete revolution of said cam shaft.

26. In a photographic camera of the type described, the combination comprising a casing having a film-supply chamber and a cover therefor, a lens, a shutter, an exposure aperture aligned with said lens and said shutter, a driven shaft, means including a motor for driving said driven shaft, a cam shaft operatively connected to said driven shaft, a multiple-cycle timing shaft operatively connected to said cam shaft, a filmadvancing means for intermittently moving a film strip from said supply chamber past said exposure aperture and operativelv connected to said driven shaft, means including a plurality of solenoids for holding said cam shaft, said timing shaft, and said film-advancing means against rotation, a single-cycle circuit including said cam-shaft solenoid and a relay in parallel circuit, said relay being adapted upon energization to energize said motor, means on said cam shaft including a plurality of cams for actuating a plurality of switches in proper sequence to release said film-advancing means and to deenerglze said single-cycle circuit upon one complete revolution of said cam shaft. a multiple-cycle circuit in parallel circuit with said single-cycle circuit and including said timing-shaft solenoid and a second relay in parallel circuit, said timingsshaft solenoid and said second relay being energized upon closing of said cover to release said timing shaft and to, initiate said singlecycle circuit respectively, means on said timing shaft including a cam adapted to be limited to one revolution for actuating a switch to deenergize said timingshaft solenoid and to maintain said second relay and said single-cycle circuit energized for a predetermined number of revolutions of said cam shaft.

27'. In a photographic camera of the type described, the combination comprising a casing having a film-supply chamber and a cover there-- for, a lens, a shutter, an exposure aperture aligned wlthsaid lens and said shutter, a driven shaft, means including a motor for driving said driven shaft, a cam shaft operatively connected to said driven shaft, a multiple-cycle timing shaft operatively connected to said cam shaft, a film-advancing means for intermittently moving a film strip from said supply chamber past said exposure aperture and operatively connected to said driven shaft, a severing means for said film strip including a shaft operatively connected to said driven shaft and held against rotation by a solenoid, means including a plurality of solenoids for holding said cam shaft, said timing shaft, and said film-advancing means against rotation, a single-cycle circuit including said cam-shaft solenoid and a relay in parallel circuit, said relay being adapted upon energizaglze said single-cycle circuit upon one complete revolution of said cam shaft, amultiple-cycle circuit in parallel circuit with said single-cycle circuit and including said timing-shaft solenoid and a second relay in parallel circuit, said timing-shaft solenoid and said second relay being energized upon closing of said cover to release said timing shaft and to initiate said single-cycle circuit, respectively, means on said timing shaft including a cam adapted to be limited to one revolution for actuating a switch to deenergize said timing-shaft solenoid and to maintain said second relay and said single-cycle circuit energized for a predetermined number of revolutions of said cam shaft, and a severing means circuit in parallel circuit with said single-cycle circuit and including a switch means in parallel circuit with the holding solenoid of said severing means and actuated by a cam on said cam shaft to energize said holding solenoid for releasin said severing means only when said single-cycle cirtive.

28. In a photographic camera of the type described, the combination comprising a casing having a film-supply chamber and a cover therefor, a lens, a shutter, an exposure aperture aligned with said lens and said shutter, a driven shaft, means. including a motor for driving said driven shaft, a cam shaft operatively connected to said driven shaft, 2, film-advancing means for intermittently movin a film strip from said supply chamber past said exposure aperture and operatively connected to said driven shaft, means including a plurality of solenoids for holding said cam shaft and said film-advancing means against rotation, a severing means for said film stri including a shaft operatively connected to said driven shaft and held against rotation by a solenoid, a single-cycle circuit including said cam-shaft solenoid and a relay in parallel circuit and an operatin switch in series circuit therewith and adapted upon being closed to energize said cam-shaft solenoid to permit rotation of said cam shaft and to energize said relay for maintaining said motor energized, and means on said cam shaft including a plurality of cams for actuating a plurality of switches in proper sequence to release said film-advancing means and to deenergize said single-cycle circuit upon one complete revolution of said cam shaft, and a severing-means circuit in parallel circuit with said single-cycle circuit and including a switch means in parallel circuit with the holding solenoid of said severing means and actuated by a cam on said cam shaft to energize said holdingsolenoid for releasing said severing-means only when said single-cycle circuit is inoperative.

29. In a photographic camera of the type described, the combination comprising a, casing having a film-supply chamber and a cover therefor, a lens, a shutter, an exposure aperture aligned with said lens and saidshutter, a driven shaft, means including a motor for driving said driven shaft, a cam shaft operatively connected to said driven shaft, 3, multiple-cycle timing shaft operatively connected to said cam shaft, a film-advancing means for intermittently movmg a film strip from said supply chamber past said exposure aperture and operatively connected to said driven shaft, means including a plurality of solenoids for holding said cam shaft, said timing shaft, and said film-advancing means ogamst rotation, a single-cycle circuit including said cam-shaft solenoid and a, relay in parallel c rcuit, said relay being adapted upon energizet1on to energize said motor, means on said cam shaft including a plurality of cams for actuating a plurality of switches in proper sequence to release said film-advancing means and to deenergize said single-cycle circuit upon one complete revolution of said cam shaft, a multiple-cycle c rcuit in parallel circuit with said single-cycle circuit and including said timing-shaft solehold and a second relay in parallel circuit, said timing-shaft solenoid and said second relay being energized upon closing of said cover and entry of the trailing edge of said film strip into said exposure aperture to release said timing shaft and to initiate said single-cycle circuit respectively, and means on said timing shaft including a cam adapted to be limited to one revolution for actuating a switch to deenergize said timing-shaft solenoid and to maintain said second relay and said single-cycle circuit ener gized for a predetermined number of revolutions of said cam shaft.

30. In a photographic camera of the type described, the combination comprising a casing having a film-supply chamber and a cover therefor, a lens, a shutter, an exposure aperture aligned with said lens and said shutter, a shutteractuating means, illuminating means outside of said casing, a synchronizing means operatively connected to said shutter-actuating means for energizing said illuminating means in timed relation to the actuation of said shutter, a driven shaft, means including a motor for driving said driven shaft, a cam shaft operatively connected to said driven shaft, a severing means for said film strip operatively connected to said driven shaft, a multiple-cycletiming shaft operatively connected to said cam shaft, a film-advancing means for intermittently moving a film strip from said supply chamber past said exposure aperture and operatively connected to said driven shaft, means including a plurality of solenoids for holding said cam shaft, said severing means, said timing shaft, and said film-advancing means against rotation, a single-cycle circuit including said cam-shaft solenoid and a relay in parallel circuit and an operating switch in series circuit therewith and adapted upon being closed to energize said relay for maintaining said motor energized, means on said cam shaft including a plurality of cams for actuating said shutter actuating means and a plurality of switches in proper sequence to actuate said shutter and synchronizing means, to release said film-advancing means, to release said severing means, and to deenergize said single-cycle circuit upon one complete revolution of said cam shaft, a multiple-cycle circuit in parallel circuit with said single-cycle circuit and including said timing shaft solenoid and a, second relay in parallel circuit, said timing-shaft solenoid and said second relay being energized upon closing of said cover and the entry of the trailing edge of said film strip into said exposure aperture torelease said timing shaft and to initiate said singlecycle circuit respectively, and means on said timing shaft including a cam adapted to be limited to one revolution for actuating a switch to deenergize said timing-shaft solenoid and to maintain said second relay and said single-cycle circuit energized for a predetermined number of revolutions of said cam shaft.

WILLIAM BORNEMANN.

NORMAN R. NEWMAN.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 1,963,095 P'etit et al June 19, 1934 2,161,391. Schubert June 6, 1939 2,166,419 ONeill July 18, 1939 2,351,399 Coracciolo et al. June 13, 1944 2,371,592 Gorey Mar. 13, 1945 2,446,668 Tuttle et a1 Aug. 10, 1948 FOREIGN PATENTS Number Country Date 557,050 Great Britain Nov. 2, 1943 

